<template>
  <div class="app-container">
    <!-- 顶部header区域 -->
    <mt-header fixed title="筱筱的Vue项目"></mt-header>
    <span slot="left" @click="goBack" v-show="flag">
      <mt-button icon="back">返回</mt-button>
    </span>

    <!-- 中间 路由router-vieww区域  -->
     <transition mode="out-in">
      <router-view></router-view>
    </transition>



    <!-- 底部的Tab栏 -->
    <nav class="mui-bar mui-bar-tab">
      <router-link class="mui-tab-item" to="/home">
        <span class="mui-icon mui-icon-home"></span>
        <span class="mui-tab-label">首页</span>
      </router-link>
      <router-link class="mui-tab-item" to="/member">
        <span class="mui-icon mui-icon-contact"></span>
        <span class="mui-tab-label">会员</span>
      </router-link>
      <router-link class="mui-tab-item" to="/shopcar">
        <span class="mui-icon mui-icon-extra mui-icon-extra-cart">
          <span class="mui-badge" id="badge">0</span>
        </span>
        <span class="mui-tab-label">购物车</span>
      </router-link>
      <router-link class="mui-tab-item" to="/search">
        <span class="mui-icon mui-icon-search"></span>
        <span class="mui-tab-label">搜索</span>
      </router-link>
    </nav>



  </div>
</template>

<script>
  export default {
    data(){
      return{
        flag:true,
      }
    },
    created(){
      // this.flag = this.$route.path === "/home" ? false:true;
    },
    methods:{
      goBack(){
        // 点击后退
        this.$router.go(-1);
      },
      // watch:{   监听地址变化
      //   '$route.path':function(newVal) {
      //     if(newVal === '/home'){
      //       this.flag = false;
      //     }else{
      //       this.flag = true;
      //     }
      //   }
      // },

    }
  }
</script>


<style lang="scss" scoped>
  .app-container{
    padding-top:40px;
    padding-bottom:40px;
    overflow-x:hidden;
  }
  .v-enter{
     opacity:0;
    transform:translateX(100%);
  }
  .v-leave-to{
    opacity:0;
    transform:translateX(-100%);
    position:absolute

  }

  .v-enter-active,
  .v-leave-active {
    transition:all 0.5s ease;
  }


.mui-bar-tab.mui-tab-item.mui-active {

    color: #007aff;
}
.mui-bar-tab.mui-tab-item {
    display: table-cell;
    overflow: hidden;
    width: 1%;
    height: 50px;
    text-align: center;
    vertical-align: middle;
    white-space: nowrap;
    text-overflow: ellipsis;
    color: #929292;
}
.mui-bar-tab .mui-tab-item .mui-icon {
    top: 3px;
    width: 24px;
    height: 24px;
    padding-top: 0;
    padding-bottom: 0;
}
.mui-bar-tab .mui-tab-item .mui-icon~.mui-tab-label {
    font-size: 11px;
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
}



</style>
